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Goodwill And Other Intangibles (Schedule Of Changes In The Carrying Amount Of Goodwill) (Details) (USD $)
In Thousands
6 Months Ended
Jun. 30, 2011
Goodwill And Other Intangibles  
Balance at December 31, 2010 $ 715,005
Goodwill acquired during the period 1,754,385
Measurement period adjustments 4,937
Effect of currency translation 342
Balance at June 30, 2011 $ 2,474,669